baber/WOPTO huggingface dataset:
Patent GB-786823-A (GB)
Title: Improvements in or relating to pulse synchronising systems
IPC: G01S1/20
Filed: 1955-11-10
Abstract: 786,823. Radio navigation. SPERRY RAND CORPORATION. Nov. 10, 1955 [Nov. 26, 1954], No. 32191/55. Class 40 (7). Figs. 1 and 2 show a Loran receiver in which received A pulses are amplified at 13 and applied to the vertical deflection plates of oscilloscope 14. They are also applied to the triode stage 17 to produce amplified and inverted pulses A<SP>1</SP> at the anode. These are differentiated in the reactive network comprising capacitor 23 and resistor 24 and combined with the pulses All produced across the cathode resistor of the stage to produce the bidirectional pulses B<SP>1</SP>. The pulses B<SP>1</SP> are amplified at 26 and applied to one input of a pulse coincidence circuit 27, the output of which controls oscillator 28 whose output frequency is higher than the repetition frequency of the received A pulses. The output from the oscillator is divided down by divider 29 to produce pulses C, Fig. 2, having a frequency substantially equal to that of the A pulses. The C pulses trigger sweep generator 30 to produce sawtooth voltages which are amplified by 31 and applied to oscilloscope 14. The C pulses are also applied to delay circuit 32 and to trigger pulse generator 33 to produce pulses D. The D pulses energize synchronizer 27 to sample the magnitude of the bidirectional pulses B<SP>1</SP> so that by means of a synchronizing system of the type described in Specification 668,777 the oscillator 28 is properly synchronized when the short pulses D occur in coincidence with the cross-over or zero D.C. position of the pulses of B<SP>1</SP> (indicated at point P). When this condition obtains the frequency control voltage from synchronizer 27 is reduced to zero. The point P, Fig. 2, B<SP>1</SP>, corresponds to a predetermined fixed point T on the leading edge of the Loran pulses shown at A<SP>11</SP>, so that the precision oscillator is synchronized with respect to this point, is unaffected by the gain of the tube 17 and does not shift due to the presence of random noise on the Loran pulses. In a modification the bidirectional pulses B<SP>1</SP> are generated by delaying the pulses A<SP>1</SP> produced at the anode of tube 17 by a pulse delay line and then combining them with pulses A<SP>11</SP> produced across the cathode resistor of tube 17.
Patent GB-447122-A (GB)
Title: Improvements in machines for fastening papers together by crimping
IPC: B31F5/02
Filed: 1934-11-08
Abstract: 447,122. Fastening together paper sheets by crimping. TOWER SALES SERVICES, Ltd., Holland House, Bury Street, London, BATES, E., 95, Gresham Road, Staines, Middlesex, and WARREN, T. C., Holland House, Bury Street, London. Nov. 8, 1934, No. 32201. [Class 146 (ii)] In a machine adapted to fasten together superposed paper sheets by crimping them between finely toothed wheels, of the kind having a cross bar which is resiliently connected to a frame member, and in which the top crimping-wheel is mounted intermediate the ends of the cross bar, there being sufficient space below the latter to permit the sheets to be crimped across a corner or along an edge, the cross bar is hingedly connected at one end to the machine frame and the other end is adjustably and resiliently connected to the machine frame. The body 1 of the machine can be clamped to a table by a screw 3. The bottom crimping-wheel 4 is mounted at the side of the body 1 and can be rotated by means of a handle 5, and the top crimping-wheel 6 is mounted at the side of a cross bar 8 on a spindle 7 carried bv the cross-bar. The cross-bar is formed of spring steel of channel section, is pivotally mounted at one end in a pin 9 carried by a boss on the body 1, and the free end of the bar is doubled over at 19 to rest on the body 1 and is slotted to accommodate a screw-threaded swing bolt 12 mounted in a forked boss on the body 1. A plate 15 forms the machine table on which the papers are supported, and guides 16, having bent over lips 17, carried by or formed on the body 1, keep the papers straight and the edges thereof down on the plate 15 during crimping; if desired, guides 16 may also be attached to the bar 8. The space between the wheels 4 and 6 can be adjusted by the nut 11. In a modification, the free end of the cross bar is not doubled over and the flanges of the bar are cut away at the free end to enable the bar to flex. Further, a compression spring is arranged on the swing bolt between the free end of the bar and the body of the machine.
Patent GB-761737-A (GB)
Title: Method of making ceramic product and mouldable mix therefor
IPC: C04B33/135
Filed: 1954-11-08
Abstract: Ceramic bodies are made from a mouldable mass comprising, in per cent by weight, 5-75 fly ash, 10-95 clay and/or shale, 0,01-5,0 lignosulphonic acid or a water soluble salt thereof, and water. Mixtures of ligno sulphonic compounds may be used or sulphite waste liquor.  Additional solids may be included, e.g. grog and coal ash slag, and bentonite may be added for green strength.  The fly ash contains 10-25 per cent of carbon.
Patent GB-846896-A (GB)
Title: Gear finishing
IPC: B23F19/05
Filed: 1956-10-23
Abstract: 846,896. Gear finishing. NATIONAL BROACH AND MACHINE CO. Oct. 23, 1956 [Jan. 9, 1956], No. 32231/56. Addition to 800,680. Class 83 (3). [Also in Group XXIII] A method of finishing the teeth of a spur, helical, bevel or hypoid, internal or external hardened, cast iron or other gear, consists in ineshing the gear G with an internal or external tool gear T having abrasive particles embedded in a hard-resilient material on the surface of its teeth, and rotating one of the members at a pitch line velocity of at least 500 ft. per min. The resilient material may be an epoxy resin, and the tool be as described in Specification 800,680. The members may have parallel axes, but are preferably meshed at a crossed-axes angle of 10 to 30 degrees, or down to 3 degrees for shoulder gears. The members are set up in light mesh, and unless the gear is small, a braking force is applied to the gear when the tool has been rotated up to working speed. During rotation, an axial or diagonal transverse motion is provided. The rotation of the gear is then reversed for a return traverse. The pitchline velocity is 500-4000 ft/min., as distinct from 300-400 for shaving, and 150-250 for lapping. The brake 10 is applied by a spring 16 and released by pressure in an air line 18, or is operated by electrical or other means. The brake shoe has diagonal grooves to assist cooling, and is of the same material as the tool so that it finishes and deburrs the tops of the gear teeth. Water, kerosene, honing-oil &c. is supplied by a nozzle N. In a modification, the braking force is applied by a second gear 42, Fig. 4, meshed with the work-gear 40 operated on by the tool 41. The gear 42 may at the same time act as a noise-tester to denote when the work-gear is running silently. Alternatively, both members 41, 42 may be tools, one of which is braked, so that the gear is finished by rotation in one direction only. In correcting serious defects, the tool and gear may be run in tight mesh.
Patent GB-1221213-A (GB)
Title: Apparatus for stripping cyanogen chloride from a strongly acid reaction medium and a method of operating same
IPC: C01C3/00
Filed: 1968-01-08
Abstract: 1,221,213. Cyanogen chloride. AGRIPAT S.A. 8 Jan., 1968 [9 Jan., 1967], No.'32312/70. Divided out of 1,221,212. Heading C1A. [Also in Division B1] An apparatus for stripping cyanogen chloride from a hydrochloric acid reaction medium comprises a column 10 having an upper packed section 11 and a lower packed section 15. CNCl containing aqueous HCl is fed to the top of the column through an inlet 14 and trickles down the column contacting a countercurrent of gaseous chlorine fed to the middle of the column through an inlet 12. Cl 2  and CNCl are removed through an outlet 13. At the base of the lower packed section 15 is a reboiler 16 heated by a steam coil 17. Any chlorine in the HCl is boiled out in the lower packed section and gas-free HCl is tapped at 18 from the column base.
Patent GB-657529-A (GB)
Title: Pan-cleaning utensil
IPC: A47L13/06
Filed: 1948-12-14
Abstract: 657,529. Pan cleaning utensils. EGLI, A. A. Dec. 14, 1948, No. 32379. Convention date, Dec. 15, 1947. [Class 19] [Also in Group VI] A pan scouring utensil comprises a number of wires bent into loops secured in a handle, the loops being arranged parallel to one another in a row and being held together by means of a connecting element provided on the upper wire layer. In the drawings, the bundle of wire loops 3 are inserted in a cavity 2 in the handle. The upper layer is held together by the connecting member 7. Narrow bundles of wire loops, Figs. 2 and 5, may alternatively be inserted in holes in the handle If the handle is a die-casting the bundles of wire loops may be cast in the handle or if the handle is of plastic material the wire bundles may be pressure moulded into the handle. If the ends of the loops are to be glued or soldered into the handle they may also be soldered or glued together. The bundles can be made in two ways thus the wires are bent and the ends of the loops, Fig. 2, inserted in the handle or the bundle may be made by coiling a wire to form closed loops, the ends 8, Fig. 5, being inserted in the handle. The separate bundles of loops, Figs. 2 and 5, may each have a connecting member or all the bundles of loops may be held together by a common connecting member. The wire loops are preferably of different lengths so that the ends lie in an arc of a circle, Fig. 1. The bundles of loops may also be concave and, as shown in Fig. 6, a broad bundle may be formed by coiling a single length of wire. The Specification as open to inspection under Sect. 91 states that the device may also comprise a straight flat bundle of wire loops which may be soldered together at both ends and then bent to form layers of unequal lengths, the longer layer being secured in the handle. This subject-matter does not appear in the Specification as accepted.
Patent GB-317682-A (GB)
Title: Improvements in or relating to flexible ladders
IPC: E06C1/56
Filed: 1928-11-07
Abstract: 317,682. Ravenhill, H., and Grieve, W. Nov. 7, 1928. Ladders.-Rungs for flexible ladders are perforated at the ends to receive the side cables b which are gripped therein by eyebolts c secured to the ends of the rungs by nuts d. The ends of the eyebolts may be riveted down on to the nuts and the rungs may be either hollow or solid with hollow ends.
Patent GB-1344962-A (GB)
Title: Process for effecting photochemical reactions
IPC: C07C17/10
Filed: 1972-07-12
Abstract: 1344962 Photochemical reactions SOLVAY & CIE 12 July 1972 [13 July 1971] 32611/72 Heading C2C A process for effecting a photochemical reaction comprises sequentially passing the reaction mixture into a series of alternating illumination zones and cooling zones, the illumination zones containing one or more light sources disposed transversely with respect to the flow of the reaction mixture and the cooling zones being provided with heat-exchange surfaces cooled by a cooling fluid, the temperature of which is higher than the dew point of the reaction mixture in the respective zone. The number of illumination zones is suitably between 2 and 20 with the ratio of the heat-exchange surface area of a given cooling zone to the volume of the preceding illumination zone suitably being between 300 and 1500 n<SP>-1</SP>. The process is conveniently used for the photochlorination of 1,1-dichloroethane and 1,1- difluoroethane.
Patent GB-941248-A (GB)
Title: An automatic station selector for multiple punch presses
IPC: B21D28/12
Filed: 1961-09-18
Abstract: 941,248. Punching. C. BEHRENS A.G. Sept. 12, 1961 [March 10, 1961], No. 32634/61. Heading B3W. An automatic station selector for a multiple punch press is characterized in that the tool plates are rotatable under the control of electric switches by mechanical indexing means operated by a power drive and controllable by a selector in such manner that any desired station can be indexed into working position without the observance of any prescribed indexing sequence, the indexed tool plates being relatively lockable by pins and bushings. The main C-type frame of the press contains a punch plate 127 rotatable about a pin 20 and a die plate 126 rotatable about a pin 125. The tool 14 at the front of the gap is operated by a ram 8 from a toggle mechanism 9. The station selector mechanism comprises a selector lever 100 pivotally mounted on a selector disc 101 in which is a spring-loaded pin 102. Below the disc 101 is a selector plate 103 in which are holes corresponding with the positions of the tools in the rotatable plate 127. Each hole contains a pin 104 which can be depressed against a spring, to operate a switch segment 105 or 106 which selects either right or left hand rotation of the plate so that the desired station is reached by the shortest route. The selector plate 103 is connected by gearing to the plate 126 and rotates in synchronism therewith. To bring the required station to the working position the selector disc 101 is rotated until the pin 102 can be depressed into the hole in the selector plate corresponding to the desired station. This action causes one of the pins 104 to operate either the segment 105 or 106 which operates a switch in the circuit of an electric motor which drives the plates 126 and 127 through gearing 119, 120, in the desired direction. Simultaneously the segment operates a switch which energizes solenoids 111 and withdraws the locking pins 113 and 114 from their respective bushes 130 and 136, this action operating switches 116 which start the plate driving motor. The rotation of the plate is stopped by a collar on the appropriate pin 104 which actuates switch 128 in the motor circuit and transfers it to a switch 129, which is opened when a locking bushing 130 in the upper plate strikes a bellcrank lever 131, thus stopping the motor. In this position the bottom end of pin 104 actuates switch 132 which de-energizes the solenoids 111 and allows the pins 113 and 114 to return to the locking position. Switch members 115 at the ends of the locking pins re-close the switches 134. Specifications 941,246 and 941,247 are referred to.
Patent GB-1048255-A (GB)
Title: 17ª-chlorethynyl-17ª-alkoxy steroids and process for the preparation thereof
Inventor: BURGESS COLIN MICHAEL
IPC: C07J1/00
Filed: 1962-08-24
Abstract: 17a  - Chlorethynyl - 17b  - alkoxy - steroids (wherein the alkyl group contains 1 to 5 carbon atoms) of the androstane and 19-nor-androstane series, some of which are novel, are prepared by reacting an appropriate alkyl halide with an alkali metal derivative of the corresponding 17a - - chlorethynyl - 17b  - hydroxy - steroid in an anhydrous non-hydroxylic solvent, such as liquid ammonia, ether or tetrahydrofuran.  The alkali metal derivative of the steroid may be formed by dissolving the steroid in the solvent and then treating with an amide of an alkali metal in liquid ammonia or by the interaction of the corresponding 17-oxo-steroid with a chloracetylide of an alkali metal.  The steroids may, for example, contain unsaturated linkages at C1, C2, C3, C4, C5(6), C5(10), C6, C8, C9(10), C9(11), C11(12) or C14, 1-, 2-, 3-, 4-, 5-, 6- o 11-hydroxyl groups which may be alkylated or acylated or converted into tetrahydropyranyl derivatives and subsequently regenerated, alkyl, alkenyl and alkynyl groups, particularly 2-, 4- and 6-methyl, oxo groups at positions 3,4,6 and 11, which may require protection as enol ethers, ketals or enamines, and halogen atoms in ring A.  17a  - Chlorethynyl - 3 - ethoxy - androsta - 3,5-dien - 17b  - ol is prepared from the 17-one, methyl lithium and trans-dichlorethylene. 17a -Chlorethynyl - 3 - n - propoxy - estra - 2,5(10)-dien-17b -ol is prepared by converting estrone 3 - n - propyl ether into 3 - n - propoxy - estra-2,5(10) - dien - 17b  - ol, this into the 17 - one, and then treating this as above.  Similarly are prepared 17a  - chlorethynyl - 3 - methoxy - estra-1,3,5(10),8,14 - pentaen - 17b  - ol, 17a  - chlor-ethynyl - 3 - ethoxy - estra - 1,3,5(10) - trien-17b -ol and the corresponding 3-n-propoxy compound, 17a  - chlorethynyl - 3 - methoxy - estra-1,3,5(10),8 - tetraen - 17b  - ol, 17a  - chlorethynyl-3 - methoxy - estra - 1,3,5(10),6,8 - pentaen - 17b -ol and 17a  - chlorethynyl - 3,3 - ethylenedioxy-4-methyl-androst-4-en -17b -ol.  The steroids of the invention, which are variously stated to have claudogenic, ovulation-inhibiting, progestational and estrogenic properties, may be made up into pharmaceutical compositions. Tablets and injection solutions are described.
Patent GB-428822-A (GB)
Title: Machine for making ropes
IPC: D07B3/10
Filed: 1934-11-13
Abstract: 428,822. Machines for making ropes. KRAFT, A., 27, Martinstrasse, Olpe, Westphalia, Germany. Nov. 13, 1934, No. 32678. [Class 109] Relates to a machine for making a dead-lay rope in which the individual wires or strands are given a twist, equal and opposite to that imposed on them by the closing die 12, by passing the closed rope 14 in one direction along a rotating flyer 7 and reversing the direction by a pulley 17, before the rope is received by the take-up mechanism 18. Guides 28, 31 are so arranged with respect to the pulley 17 that the rope 14 passes obliquely over the pulley. The guide 28 may be adjustably mounted in a slot 29 in one of the discs 5 constituting the flyer. The surface of the pulley may be curved as shown.
Patent GB-1308179-A (GB)
Title: Method of producing aromatic carboxylic acids from alkylbenzenes
IPC: C07C51/265
Filed: 1970-07-06
Abstract: 1308179 Aromatic carboxylic acids SOC ITALIANA RESINE SpA 6 July 1970 [7 July 1969] 32724/70 Heading C2C A process for the preparation of aromatic carboxylic acids by the oxidation of alkyl benzenes with oxygen or gases containing molecular oxygen, in an aliphatic carboxylic acid environment and in the presence of catalysts consisting of cobalt and/or manganese salts is characterized by the fact that the oxidation is carried out at temperatures of 100 to 160 C. and pressures of 5 to 30 atmospheres in the presence of diacetone alcohol admitted to the reaction environment to the extent of from 0À5 to 5% by weight related to the reaction mixture. In an example p-xylene is oxidized to terephthalic acid.
Patent GB-506074-A (GB)
Title: Improvements in stabilising devices
IPC: B64C13/00
Filed: 1937-11-29
Abstract: 506,074. Controlling aircraft and ships. GIANOLI, M. L. Nov. 29, 1937, ,No. 32950. [Classes and 114] In means for controlling aircraft and ships in which an auxiliary surface is 'pivotally mounted on a main surface pivotally, mounted on the craft and in which the auxiliary surface modifies its position relatively to the main surface when this latter surface moves, the pivot of the main surface is located rearwardly of its centre of pressure and the auxiliary surface is behind the main surface and is caused to rotate in the same direction as the main surface when this moves. As shown, a rudder 1 is pivoted, on a tube 81 rigid with and braced to the fuselage 82, about an axis such that the rudder is overbalanced. A servo-flap 5 is pivoted to the trailing edge of the rudder and is provided with an arm connected by a link to a two-armed lever connected by cables 97 to the pilot's cockpit.
Patent GB-1216578-A (GB)
Title: Improvements in or relating to selective magnetic reed switches
Inventor: BARRY THOMAS JOHN
IPC: H01H36/00
Filed: 1968-07-10
Abstract: 1,216,578. Movable magnetic switches. ETHER Ltd. 23 May, 1969 [10 July, 1968], No. 32964/68. Heading H1N. A selector switch has reed contact units 6, 6a, 7, 7a, 8, 8a &c. arranged for operation by a magnet 28 coupled to a shaft 21 by a pin 24 in slots 25 allowing the magnet to be held attracted to a pair (such as 6, 6a) of contact units until the pin is engaged in the end of the slot as the shaft is rotated and then when the magnet is forced away from the contact units it will reach a point where it is attracted to the next pair of contact units and snaps into line with this next pair of units. Flux guide plates 13, 13a, 14, 14a &c. concentrate the flux in the contact areas of the contact units and have reduced section extensions passing through and second to insulating plates 4, 5 which also support the contact units. The magnet 28 is mounted on a body 23 which also carries a balance weight 29 to provide dynamic balance.
Patent GB-676357-A (GB)
Title: Refractory and method of producing the same
IPC: C04B35/52
Filed: 1948-12-21
Abstract: 676,357. Refractory compositions. HENDREN, R. R. Dec. 21,1948, No. 32972/48. Class 22 A refractory masonry unit it prepared by mixing refractory fire clay and amorphous graphite, adding water, shaping, drying until at least 80 per cent of the water is removed and firing in a reducing atmosphere at 1800‹F. to 2800‹F. until vitrification occurs. Grog -crushed and fired clay. e.g. used brick-may also be added. Preferred preparations, by weight, are fire clay 22 to 92 per cent; amorphous graphite 52 to 6 per cent; and grog in an amount not exceeding 40 per cent. Examples are also given wherein equivalent amounts of flake graphite, plumbago, kish (a free carbon), or amorphous carbon, replace the amorphous graphite.
Patent GB-600893-A (GB)
Title: Manufacture of acylated aliphatic amino carboxylic acid amides
IPC: C07K1/00
Filed: 1945-12-06
Abstract: Acylated aliphatic N-monoalkyl amino carboxylic acid dimethylamides of the general formula R1R2N-CH.R-CO.N(CH3)2 wherein R represents a methyl, ethyl or isopropyl group, R1 represents the ethyl, n-propyl or sec. butyl group and R2 is an acetyl, propionyl or crotonyl group are prepared by the general methods described in the parent Specification.  The products are stated to be new and have therapeutic properties.  In the examples: (1) N-acetyl, propionyl and crotonyl-a -(n-propylamino) -n-butyric acid dimethylamides are prepared by acylation of a -(n-propylamino)-n-butyric acid dimethylamide, obtained by heating a -bromo-n-butyric acid dimethylamide with n-propylamine or by hydrogenating a -allylamino-butyric acid dimethylamide, with the acid chlorides and many other compounds of the above type prepared by this method are tabulated; (2) a -ethylamino- or n-propylamino-n-butyric acid is acylated with crotonyl chloride, converted into the acid chloride by means of phosphorus pentachloride and then reacted with dimethylamine; (3) a -(N-crotonyl propylamino) butyric acid sodium salt is reacted with dimethyl carbamic chloride; (4) ethyl-a -bromo-n-butyrate is reacted with n-propylamine, the product acylated with propionyl chloride, and then heated with dimethylamine; (5) crotonyl ethyl amide or crotonyl-n-propyl amide is heated in xylene with sodamide and the resulting sodium salt reacted with a -bromo-butyric acid dimethylamide; (6) a -amino-n-butyric acid dimethylamide is acylated with crotonyl chloride, the resulting N - crotonyl - a  - amino - n - butyric acid dimethylamide converted into the sodium salt as in (5) and then reacted with propyl bromide; (7) a -ethylamino-n-butyramide is acylated with crotonyl chloride, converted into the sodium salt as in (5) and the product alkylated by means of potassium methyl sulphate.
Patent GB-1187478-A (GB)
Title: Insulated Wall Construction, for use on Trailers and the like
IPC: B62D33/04
Filed: 1967-07-19
Abstract: 1,187,478. Refrigerator vehicles. CRANE FRUEHAUF TRAILERS Ltd. 19 July, 1967 [25 Aug., 1966], No. 33080/67. Heading B7B. [Also in Division F4] The outer wall 22 preferably of metal has stiffening members 24 secured to it, as by rivets 26 a longitudinal groove 30 being provided for pivotal engagement of a plastics spacer 28 as shown at 28a. The spacer 28 is preferably held in its correct position by a block 36 of foamed plastics material before the inner cladding 42 is secured to it and the space between the panels filled with a foamed plastics material 52.